Removing And Replacing Dimms - IBM xSeries 455 Installation Manual

v When you install or remove DIMMs, the server configuration information

Removing and replacing DIMMs

Complete the following steps to install a DIMM in your server with the server turned
off:
1. Read the safety information beginning on page v and "Installation guidelines" on
2. Turn off the server and peripheral devices, and disconnect the power cords and
The following illustration shows the LEDs on the DIMM access door:
Port 1 power LED Memory hot-plug
enabled LED
Port 1 power LED: When this LED is off, it indicates that power is removed from
the port and that you can replace a failed DIMM.
Memory hot-plug enabled LED: When this LED is lit, it indicates that hot-swap
memory is enabled. When this LED is flashing, it indicates that data is being
mirrored on the replacement DIMMs.
Port 2 power LED: When this LED is off, it indicates that power is removed from
the port and that you can replace a failed DIMM.
changes. When you restart the server, the system displays a message indicating
that the memory configuration has changed.
page 7.
all external cables, if necessary; then, open the cover.
Attention: When you handle static-sensitive devices, take precautions to
avoid damage from static electricity. For details about handling these devices,
see "Handling static-sensitive devices" on page 8.
Port 2 power LED
Chapter 2. Installing options
21